1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9
10 #ifndef _LIBCPP___FUNCTIONAL_BINDER2ND_H
11 #define _LIBCPP___FUNCTIONAL_BINDER2ND_H
12
13 #include <__config>
14 #include <__functional/unary_function.h>
15
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 # pragma GCC system_header
18 #endif
19
20 _LIBCPP_BEGIN_NAMESPACE_STD
21
22 #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS)
23
24 template <class __Operation>
25 class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX11 binder2nd
26 : public __unary_function<typename __Operation::first_argument_type, typename __Operation::result_type>
27 {
28 protected:
29 __Operation op;
30 typename __Operation::second_argument_type value;
31 public:
32 _LIBCPP_INLINE_VISIBILITY
binder2nd(const __Operation & __x,const typename __Operation::second_argument_type __y)33 binder2nd(const __Operation& __x, const typename __Operation::second_argument_type __y)
34 : op(__x), value(__y) {}
operator()35 _LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
36 ( typename __Operation::first_argument_type& __x) const
37 {return op(__x, value);}
operator()38 _LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
39 (const typename __Operation::first_argument_type& __x) const
40 {return op(__x, value);}
41 };
42
43 template <class __Operation, class _Tp>
44 _LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_INLINE_VISIBILITY
45 binder2nd<__Operation>
bind2nd(const __Operation & __op,const _Tp & __x)46 bind2nd(const __Operation& __op, const _Tp& __x)
47 {return binder2nd<__Operation>(__op, __x);}
48
49 #endif // _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS)
50
51 _LIBCPP_END_NAMESPACE_STD
52
53 #endif // _LIBCPP___FUNCTIONAL_BINDER2ND_H
54